Table 1.

Numbers of patients and non-patients

Patient-group by JSSF Scale classification	Gender	Number	Age
			Mean ± SD
Patient
Ankle and hindfoot	Male	232	47.0 ± 18.6
	Female	237	52.6 ± 18.1
	Total	469	49.8 ± 18.5
Hallux	Male	43	54.9 ± 19.1
	Female	126	59.5 ± 15.6
	Total	169	58.3 ± 16.6
Lesser toe	Male	15	43.7 ± 19.2
	Female	30	52.7 ± 17.4
	Total	45	49.7 ± 18.3
Midfoot	Male	32	44.8 ± 17.3
	Female	36	50.7 ± 19.8
	Total	68	47.9 ± 18.7
Rheumatoid arthritis	Male	30	61.0 ± 14.3
	Female	87	59.3 ± 12.1
	Total	117	59.8 ± 12.6
Not reported	Male	4	31.5 ± 16.9
	Female	4	67.8 ± 7.5
	Total	8	49.6 ± 22.8
All groups	Male	356	48.6 ± 18.8
	Female	520	55.4 ± 17.0
	Total	876	52.6 ± 18.0
Non-patient
	Male	225	45.0 ± 17.0
	Female	266	44.2 ± 16.4
	Total	491	44.6 ± 16.6